Vertebral body implant

Abstract

The disclosure relates to a vertebral body implant including a flexible main body and at least one pedicle screw joint. The flexible main body is an integrally formed single piece having at least one joint-accommodating hole and at least one opening connected to the at least one joint-accommodating hole. The pedicle screw joint is an integrally formed single piece movably accommodated in the at least one joint-accommodating hole.

What is claimed is: 
     
       1. A vertebral body implant, comprising:
 a flexible main body, being an integrally formed single piece having at least one joint-accommodating hole and at least one opening connected to the at least one joint-accommodating hole; and 
 at least one pedicle screw joint, being an integrally formed single piece movably accommodated in the at least one joint-accommodating hole; 
 wherein the at least one pedicle screw joint comprises a cylindrical main portion partially exposed from the opening and two tapered embedded portions on opposite sides of the cylindrical main portion, the two tapered embedded portions tapering away from the cylindrical main portion. 
 
     
     
       2. The vertebral body implant according to  claim 1 , wherein the at least one pedicle screw joint comprises a main portion and two embedded portions, the main portion is located between the embedded portions, the embedded portions are hidden in the flexible main body, and the main portion has a screw hole exposed from the at least one opening. 
     
     
       3. The vertebral body implant according to  claim 2 , wherein the flexible main body has at least one screw contact inner wall, the at least one screw contact inner wall is located in the at least one joint-accommodating hole and is exposed from the screw hole of the main portion and the at least one opening. 
     
     
       4. The vertebral body implant according to  claim 1 , wherein the flexible main body and the at least one pedicle screw joint were 3D printed together. 
     
     
       5. The vertebral body implant according to  claim 1 , wherein the flexible main body has a plurality of slots spaced apart from one another. 
     
     
       6. The vertebral body implant according to  claim 1 , wherein the flexible main body is an integrally formed helix structure. 
     
     
       7. The vertebral body implant according to  claim 1 , wherein the flexible main body has two bone contact surfaces and a plurality of tooth portions, the plurality of tooth portions protrude from the bone contact surfaces and are arranged along contours of the bone contact surfaces. 
     
     
       8. The vertebral body implant according to  claim 1 , further comprising a connecting component and another flexible main body, the flexible main body and the another flexible main body are rotatably connected to each other via the connecting component. 
     
     
       9. The vertebral body implant according to  claim 8 , wherein the connecting component comprises a shaft portion and a spacer portion, the flexible main body and the another flexible main body are respectively rotatably disposed on two opposite ends of the shaft portion, the shaft portion is fixed on the spacer portion, the spacer portion is located between and clamped by the flexible main body and the another flexible main body. 
     
     
       10. The vertebral body implant according to  claim 8 , wherein the connecting component comprises a shaft portion and a spacer portion, the shaft portion is partially screwed into the flexible main body, and the shaft portion is fixed to the another flexible main body, the shaft portion is movably disposed through the spacer portion, the spacer portion is located between the flexible main body and the another flexible main body.